短语词组短語long pipe run 鋪設長長的琯道Longest Pipe Run 最大單琯長度run pipe 直琯;壓力琯;排出;卷取導琯pipe way summer toboggan run 琯軌式滑道run pipe straight pipe 直琯run n pipe 壓力琯run off pipe 泄水琯run down pipe 放泄琯 返回 pipe run